Eyes, Ears, Nose, Tongue and Skin are the sense organs.

The eye has three main parts namely cornea, iris and pupil

Digestion and absorption of food done by digestive system.

Trachea commonly called wind pipe - allowing the passage of air to lungs.

Arteries, Veins and capillaries are the blood vessels.

The entry of food into the wind pipe is prevented by a flap like structure called epiglottis.

The skeletal system consists of bones, cartilages and joints. It provides a framework for the body.

(i) Bone provide a frame work for the body.
(ii) Bones along with muscles help in movements such as walking, running chewing and dancing, etc., 

(i) The rib cage is made up of 12 pairs of curved, flat rib bones.
(ii) It protects the delicate vital organs such as heart and lungs.

A. Kidneys removes extra salts and water from the blood
B. The urine is stored in Urinary bladder
C. Through urethra urine is excreted out of the body.
D. Ureter transfer urine from the kidneys to the urinary bladder.

Endocrine system:
(i) Endocrine glands are present in the body produce chemical substances called hormonds.
(ii) It regulates various fundions of the body and maintains the internal environment.
Nervous system:
(i) Nervous system is well developed by neurons or nerve cells.
(ii) Nervous system along with the endocrine system doing conduction and co-ordination in human body.

While swallowing food if the food particles enter into respiratory tract leads to hiccup and cough to eject out the food particles from respiratory tract.

To protect from the skin dry due to over heat.